This is the company's latest flagship device which powered nevertheless Qualcomm Snapdragon 835 processor with 6GB of RAM. It has 128GB of internal storage that can expand up to 256GB. Fingerprint scanner is now located in the front, beneath the capacitive home button

The device sports 5.5-inch AMOLED Full HD display and backed up with 3,600 mAh battery.

In terms of camera, the ZenFone 4 Pro sports dual-camera setup on the rear - 12-megapixel Sony IMX362 with f/1.7 lens and 16-megapixel Sony IMX351 telephoto lens. Both of the rear cameras comes with 4-axis OIS and features ultra-fast 0.03 TriTech AutoFocus.

The standard ZenFone 4 on the others hand specs slightly lower than the ZenFone 4 Pro. It getting Qualcomm Snapdragon 630/660 Processor (depends on region) and mated with 6GB of RAM. It packed with 64GB onboard storage that can be further expanded via microSD card up to 2TB.

Display wise is a 5.5-inch Full HD Super IPS+ LCD display with 600 nits. It packed with slightly smaller battery capacity at 3,300 mAh comparing with the Pro-version.

The ZenFone 4 still gets dual-camera setup but ASUS took a different approach. It features a 12-megapixel Sony IMX362 with f/1.8 lens alongside with an 8-megapixel 120˚ wide-angle lens. The selfie camera is an 8-megapixel f/2.0 lens with 84˚ field-of-view.

The selfie-centric smartphone by ASUS is finally back! This round it comes with two version which is the standard and Pro. Let's start off with the ZenFone 4 Selfie Pro, the device is powered by Qualcomm Snapdragon 625 processor paired with 4GB of RAM and 64GB onboard storage. The storage can be expanded up to 2TB on the 2nd hybrid SIM slot.

The selfie cameras are the main highlight of this device. It has a 24-megapixel DuoPixel technology and a 5-megapixel 120˚ wide-angel lens. It even has an in-built SoftLight LED on the front to give better and more natural lighting.

To keep the 5.5-inch AMOLED Full HD display lights on is a 3,000 mAh battery that charges through microUSB port instead of the uprising USB Type-C.

The device comes in three colors; Deepsea Black, Sunlight Gold and Rouge Red.

ASUS ZenFone 4 Selfie

The regular version of ZenFone 4 Selfie packed slightly less powerful specs compare to the Pro version. It sports a 5.5-inch 720p HD IPS display and backed with 3,000 mAh battery pack.

Under the hood is Qualcomm Snapdragon 430 Processor mated with 4GB of RAM and 64GB internal storage that can further expand up to 2TB.

It gets dual-Selfie cameras where one is a 20-megapixel f/2.0 lens and an 8-megapixel f/2.4 120˚ field of view lens. SoftLight is also feature on the device.

The monster battery-packed device, ZenFone 4 Max has two version that differ by powerhouse and storage. On the event only the ZenFone 4 Max Pro were made appearance, the ZenFone 4 Max is pretty much the same as the ZenFone 4 Max Pro.

The ZenFone 4 Max Pro sports a 5.5-inch 720p HD IPS display and powering the device is Qualcomm Snapdragon 425 processor with 3GB of RAM. It packed with 32GB onboard storage and can be further expand on a dedicated microSD card slot.

There's an non-removable 5,000 mAh battery that will provide you an impressive battery life and supports reverse charging like the previous Max-series.

As for the camera, the ZenFone 4 Max Pro features dual-camera setup - 16-megapixel f/2.0 lens alongside with a 5-megapixel f/2.2 120˚ wide-angle-lens on the rear. The front camera is a 16-megapixel f/2.0 lens.

All the new ASUS ZenFone 4-series runs on Android 7.1.1 Nougat on top of ZenUI 4.0. On the event itself, the company also confirmed the Android O will be made available on the ZenFone 4-series and as well on the ZenFone 3-series.